Bed-frame for railway-cars



(No Model.)

W. W. GREEN 82-, J. MU'RISON.

BED FRAME FOR RAILWAY CARS.

. Patented May 28,1889.

@51 m whoa/111M 1 n i m H: z N. z m f W Z m V: Y z z m f m V; 2 iv i .N f z F E. 2 w v: f 8 F; T w H n MM N. PETERS. FMa-Liihoqnphcn Washington, D. a

UNITED STATES PATENT OFFICE.

IVILLIAM W. GREEN AND JAMES MURISON, OF CHICAGO, ILLINOIS, ASSIGNORS TO THE AMERICAN FIRE PROOF STEEL CAR COMPANY, OF ILLINOIS.

BED-FRAME FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent N 0. 404,277, dated May 28, 1889.

Application filed September 5,,1888. Serial No. 284,667. (No model.)

To all whom it may concern:

Be it known that we, WILLIAM \V. GREEN and JAMES MURISON, citizens of the United States of America, and residents of Chicago,

5 in the county of Cook and State of Illinois, have jointly invented certain new and useful Improvements in Bed-Frames for Railway- Cars, of which the following is a specification.

Referring to the accompanying drawings,

T in which similar reference-letters indicate the same or corresponding parts, Figure l is a plan; Fig. 2, aside elevation; Fig. 3, a crosssection in line 00 0c of Figs. 1 and 2, and Fig. 4 a partial plan showing a formal modifica- I 5 tion of the structure.

The object of our invention is. to combine to the greatest extent practicable in the bedframe of a railroad-car the qualities of lightness, strength, rigidity, and inflexibility, and

at the same time to so construct said frame that it can be made cheaply, put together conveniently, readily taken apart, and in case of injury to any of its members another can easily be substituted or the injured members removed and used in other structures.

To this end the invention consists, first, in the peculiar construction of the longitudinal stringers and sills, as hereinafter described; secondly, in spacing and uniting together said 0 longitudinal members along the portion intermediate between their ends by means of struts and tie-rods; thirdly, in spacing and uniting together the longitudinal members at their ends by means of angle-irons, instead of mor- 3 5 tising them into a cross-beam, as heretofore; fourthly, in strengthening the entire structure by bending the outside metal sill-plates around the corners and transversely of the ends of the frame and bolting them to said 4o'angle-irons; fifthly, in combining with the longitudinal members spaced and fastened together at their ends by the angle-irons, and with the sill-plates bent around the cornersof the frame, as aforesaid, metal end plates extending across the ends of the frame and secured thereto by bolts passing through the sill-plates and angle-irons, and, lastly, in the general construction and combination of the parts composing the entire frame, as hereinafter set forth.

In our bed-frame the longitudinal stringers A are each composed of two metal plates, 1) 1), preferably about one-fourth-inch thick and six inches deep, set edge up parallel to each other and spaced apart by an interposed wooden beam, or by a series of interposed wooden or metallic blocks or clips, a, (see Fig.

4,) through which the two metal plates are bolted or riveted together, as shown at r a, the whole forming a comparatively narrow, but deep, composite girder. The sills B are constructed in substantially the same manner; but in the outside lateral members of the frame we prefer to space the two plates by the wooden beam, instead of the blocks, and to make the outer plate a little less in depth than the beam, countersink said plate in the side of the beam, and countersink the outer ends of the bolts or rivets r in the plate, thus leaving the lower outer edge of the wooden 7o beam exposed below and flush with the outer metal plate, for convenience in nailing on the side boarding of the car.

The longitudinal members of the bed-frame thus constructed are arranged substantially parallel to each other, and at suitable intervals along the portions intermediate between their ends are separated and spaced apart by spool-shaped metal struts 0, through which they are all bolted together by tie-rods d, extending from side to side of the frame and provided with countersunk screw-nuts at their ends, or with a head at one end and a nut at the other.

The longitudinal members at their extremi- 8 5 ties are fastened firmly and strongly together by angle-irons f, interposed between each proximate pair.

The angle-irons may be constructed in the form of separate U-shaped clips and bolted to the sills and stringers, as shown in Fig. 1, or by bending the ends of the plates b at right angles so as to overlap each other, as shown between the middle stringers of Fig. I, or so as to abut against each other, as shown between the outer longitudinal members in Fig. 4.

The outside metal plates of the sills are bent around the corners of the frame, so as to extend transversely of its ends and lie flat against the extremities of the longitudinal I00 members and against the connecting devices f, between them, and, preferably, to abut against each other, as shown at Z). They are bolted firmly to said connecting devices by bolts g. A metal plate, 6, is placed across each end of the frame, so to cover the joint between the extremities of the bent side plates, 1), and is secured in position by the bolts g, which pass through the plates e b and spacing devices f and fasten the whole firmly together.

The metal employed throughout our bedframe is preferably steel. It is obvious that a structure of this kind is so thoroughly trussed against lateral racking and so strengthened by the plates 1) against vertical bending under heavy loads that its several members may be made comparatively light, and cost thus reduced, without incurring any risk of unduly weakening the frame.

The various parts are easily made, may be accumulated in large quantities in stock ready for immediate use, can be quickly fitted together and readily taken apart, and, being interchangeable in different cars, can be utilized in car-building as long as they remain unin j ured.

Having thus described our invention, what we claim as new, and desire to secure by Let ters Patent, is-

1. The combination of the spool shaped metal struts c and the tie-rods (Z with a series of longitudinal members, A 15, arranged parallel to each other and each composed of two metal plates, 1), connected together by bolts or rivets 0', extending through an interposed spacing material, and by the tie-rods d, extending through the struts c from side to side of the frame, substantially as described.

2. The combination of a series of longitudinal members,AB, and terminal spacing in embers f, with the outside metal plates, 1), bent around the corners of the frame, so as to extend longitudinally of its sides and transversely of its ends, and bolted to the spacing members f, substantially as described.

3. The combination of the longitudinal members A B, the terminal spacing members f, and the outside metal plates, 1), bent around the corners of the frame, with the transverse end plates, 6, bolted to the bent plates b and spacing members f, substantially as described.

4. The combination of the composite longi tudinal members A B, the struts C, the tierods d, the terminal spacing members f, the outside plates, 1), bent around the corners of the frame, and the transverse end plates, 6, bolted to the bent platcsb and spacing members f, substantially as described.

\VILLIAM \V. GREEN. JAMES MURISON.

\Vitnesses:

HARRY BITNER, WILLIAM LANPHERE. 

